ISP Information:
Photosensitive CCDs are used in scanners, digital cameras, and video cameras. The CCD basically reads the image by storing a group of charges based on the image to which it is exposed. These charges are analog charges, as opposed to simple digital on/off charges. Thus, you can grab degrees of light and color to transfer a visual image into a group of electrical charges, and then to your computer screen, video tape, or pr
ISP Glossary:
CCD - In article , Jeffrey Mattox says: The Mail Washer web site says : "... the bounced messages look exactly like a returned mail message you would receive if you sent an email off to a wrong address. There is no way the spammers can tell it is not genuine." But that is wrong! Spammers can tell because the bounce message comes as a delayed email (which they will ignore) rather than a refused connected by the SMTP protocol. With spammers using every trick they can to get emails through spam filters, why would anybody believe they would be fooled by a faked bounce message? Besides, spammers aren't interested in cleaning their lists. It's a waste of their time because it costs them nothing to keep the bad addresses. Damn them! The companies that are advertising this "feature" of their product are either idiots or (more likely) are hoping to impress people with a feature that sounds good, but, in fact, is detrimental.I once used MailWasher until I actually looked at the way SMTP works andrealized it was easy to tell that the bounce was counterfeit.I've since switched to PopFile -- it is an email proxy that usesBayesian rules to filter out the SPAM. You have to teach it for thefirst week as it doesn't really know how to classify things. But oncethat's done you should see classification accuracy of 99% orhigher. And here's the thing -- it errs on the side of legitimateemail. So every once in a while for the first month or so you mightsee SPAM tagged as legitimate. Just go into the web console and tagit as SPAM and that will increase the accuracy.Right now I'm at 99.65% accuracy. Granted, I munge my address enoughthat it'll be some time before I start getting spam.http://popfile.sourceforge.net/In article , pv+usenet@pobox.comsays: me@privacy.net writes: How difficult would it be to spoof a message that seemed like it came from an ISP's mail server? I'd like this technique to discourage some people from sending mail to me. It's actually pretty trivial -- send a message to a whacko address on your ISP's mailserver, and mimic the resulting bounce message that gets sent to you. If you're doing this for specific people that you actually know and don't like, it's harmless enough. However, DO NOT be tempted to use this against spammers. All you'll be doing then is sending random messages to addresses that either don't exist, or don't belong to the spammer. The only way to bounce a spam is during the SMTP conversation while the message is coming in, and even then in most cases the spammer isn't paying attention to the responses anyway. *If you have the time, see who registered the domain name of the siteselling the product.I've had particular success when a certain type of spam gets on mynerves when looking up the domain owner, attempting to send email from asafe account (aka a disposable account) and calling if the number iswithin the continental U.S. If none of those contact methods works Idrop an empty envelope to the address listed. If it comes backundeliverable I scan the returned envelope and send it to the registraralong with the log of calls, emails, etc. I've gotten a few domainshosed that way.
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